GB2266535B - Magnetic recording medium - Google Patents

Magnetic recording medium

Info

Publication number
GB2266535B
GB2266535B GB9308838A GB9308838A GB2266535B GB 2266535 B GB2266535 B GB 2266535B GB 9308838 A GB9308838 A GB 9308838A GB 9308838 A GB9308838 A GB 9308838A GB 2266535 B GB2266535 B GB 2266535B
Authority
GB
United Kingdom
Prior art keywords
recording medium
magnetic recording
magnetic
medium
recording
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9308838A
Other versions
GB2266535A (en
GB9308838D0 (en
Inventor
Attila Vass
Wolf-Dieter Schroeer
Hans-Heinrich Credner
Hildegard Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Emtec Magnetics GmbH
Original Assignee
BASF Magnetics GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF Magnetics GmbH filed Critical BASF Magnetics GmbH
Publication of GB9308838D0 publication Critical patent/GB9308838D0/en
Publication of GB2266535A publication Critical patent/GB2266535A/en
Application granted granted Critical
Publication of GB2266535B publication Critical patent/GB2266535B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/712—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the surface treatment or coating of magnetic particles
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/7013—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the dispersing agent
GB9308838A 1992-04-30 1993-04-29 Magnetic recording medium Expired - Fee Related GB2266535B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4214274 1992-04-30

Publications (3)

Publication Number Publication Date
GB9308838D0 GB9308838D0 (en) 1993-06-16
GB2266535A GB2266535A (en) 1993-11-03
GB2266535B true GB2266535B (en) 1996-03-13

Family

ID=6457860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9308838A Expired - Fee Related GB2266535B (en) 1992-04-30 1993-04-29 Magnetic recording medium

Country Status (1)

Country Link
GB (1) GB2266535B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1569489A (en) * 1976-12-21 1980-06-18 Philips Nv Magnetic recording tapes containing a phosphoric acid ester dispersant
GB1578780A (en) * 1976-06-22 1980-11-12 Sony Corp Magnetic recording media and methods of making such media
US4961959A (en) * 1988-03-23 1990-10-09 Dow Corning Corporation Quaternary ammonium salt of an alkoxysilane as a dispersant for magnetic pigment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1578780A (en) * 1976-06-22 1980-11-12 Sony Corp Magnetic recording media and methods of making such media
GB1569489A (en) * 1976-12-21 1980-06-18 Philips Nv Magnetic recording tapes containing a phosphoric acid ester dispersant
US4961959A (en) * 1988-03-23 1990-10-09 Dow Corning Corporation Quaternary ammonium salt of an alkoxysilane as a dispersant for magnetic pigment

Also Published As

Publication number Publication date
GB2266535A (en) 1993-11-03
GB9308838D0 (en) 1993-06-16

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee